Stapling machine



April 25, 19 3. 1 VQ'GEL 1,905,254

STAPLING MACHINE Filed July 15, 1932 a Q; g

Patented 'Apr. 25; 1933 nmrao srArss PATENT orrica MAX VOGIE, FFRANKFOR'I -QN-THE-MAIN, GERMANY, A$SIGNOR TO THE E. EHOTCHF KISSCOMPANY; OF NORWALK, CONNECTICUT, A CORPORATION OF CONNEOEJICUTszmrnmemomn Application flledql'uly 15,

This invention relates to new and useful improvements'in staple drivingmachines and has particular relation to a pller type stapling machine ofthe kind used for stapling together the various pages of documents andthe like.

An object of the invention is to provide a staple driving machineincluding means whereby a staple may be easily ejected should it clog inthe raceway of the machine.

Another object is to provide a plier type stapling machine including amaimhousing having an anvil portion, a housing pivoted in said mainhousing and including a head said raceway toward and from the anvil todrive the staples through the raceway, meansto operate said plunger todrive a staple,

means whereby the initial movement of said operating means serves torock the pivoted housing on its pivot in a manner to carry its head'afidthe lower end of said racewa toward the anvil and into engagement withthe means to be stapled, and means at will, to secure said pivotedhousing against said movement to permit of--o eration of the plungerwhile the head of t e pivoted housing is spaced from the anvil to permita clogged staple to be ejected from the raceway.

Afurther object is to provide a means for the purpose stated and whichisextremely simple in construction, easy to operate and which does notdetract from the appearance of the stapling machine in which it'isembodied.

Other objects and advantages will become apparent from a considerationof the following detailed description taken in connection with theaccompanying drawing wherein satisfactory embodiments of the inventionare shown. However, it is to be understood that the invention is notlimited to the details disclosed but includes all such variations andmodifications as fall within the spirit of the invention and the scopeof the appended claims to which claims reference is to be had for adefinition of the invention.

In thedrawing:

Fig.1 is a side elevational view of a complete stapling machine inaccordance with the having a raceway and a plunger operable in shown innormal or inoperative position 1982. semi Hm 622,5 8 4.

invention, parts of the housing bein broken away, the operating partsbeing s own in their normal positions;

Fig. 2 is a similar view showin the forward portion of the'machine as :won driving a staple;

- ig. 3 is a detail sectional View taken substantially along the line3-3 of Fig. 1;

Fig. 4 is a side elevational view 0 the forward portion of the machine,parts of the to housing being broken away and the parts being shown asositioned when a clogged staple is being ejected from the raceway;

Fi 5 is a sectional detail view taken su stantially along the line 5-5of Fig. 4; Fig. '6 is a detail sectional view somewhat 7 similar to Fig.3 but taken substantially along the line 6-6 of Fig. 4;

Fig. 7 is a. erspective view of the plunger Q removed an L Fig. 8 isaside elevational view of the lower forward portion of the machine,showing a modified form of locking means for the pivoted housing, thelocking means. being 475 Fig. 9 is a view similar to Fig. .8 but withthe locking means shown in operative position; and p Fig. 10 is aerspective view of the locking means of igs. 8 and 9 removed.

Referring in detail to the drawing and at first particularly to Figs. 1through 7 thereof, at 11 is generally indicated the main or outerhousing of the machine which housing pref-. erably includes a bottomwall 12, side walls 13 and 14, and a top wall 15. Formed with this mainhousing 11 and extending rearwardly therefrom is a handle orohand grimember 16 the complete function of w ic will later appear. Aside fromthe handle 16 the housing 11 is open at its rear end and at its forwardend is closed by a removable cap or closure member 17 which may besecured in-place as by a pin 18. 1

The sidewalls 13 and 14 of the housing are cut away to provide a mouthor notch 19 into which papers or the'like to be stapled together areinserted.- Disposed on the lower or bottom wall 12 of the housing belowthe notch 19 is an anvilbar 20secured in place" -10o on a slightlyenlarged scale} 10 l as by rivets or the like 21 and being shaped towardits forward end to provide anvil recesses 20a which bend or fold theprongs of the staples against the under side of the pa- 24 of thehousing 22 includes a raceway 27 in which is slidably mounted a plunger28 adapted to be reciprocated inthe raceway to drive the staples. Itwill be understood that the staple strip 26 is fed along the guide bar25 in the direction of the raceway 27 and that the staples are fed oneat a time into the raceway to be driven therethrough by the plunger 28.

An operating member or lever 29 is pivot-.

ally mounted within the housing 11 as by means of a pivot 30 supportedin the side walls of the housing. It will be noted that the member 29 ispivoted intermediate its ends and toward its forward end this member isreduced to provide a portion 31 arranged in an opening 32 in theplunger. A second handle or hand grip 33 has a portion 34 disposedwithin the housing 11 and the handle 33 is pivotally mounted as on apivot 35 supported in the side walls 13 and 14 of the housing.

The forward end of the portion 34 overlaps the rear end of the operatingmember 29 and carries a pin 36 disposed in a slot 37 in said memberwhereby the handle and member are connected.

The inner housing 22 is pivotally mounted within the housing 11 and tothis 'end the elongated portion 23 of housing 22 carries a pair ofdownwardly extending ears 38 pivotally mounted as at 39. Owing to thispivotal mounting the housing 22 is adapted for rocking movement to carryits head 24 toward and from the anvil bar '20. As the "handle 33 ispivoted intermediate its ends movement of its outer end portion in thedirection of the handle 16 will result in an upward movement of its endportion 34. Owing to the pin and slot connection between the operatingmember 29 and the pivoted handle the inner end of said member will bemoved upwardly and the outer end thereof will be moved downwardly and asthe portion 31 thereof is in the opening 32 in the plunger the plungerwill bemoved downwardly ina manner to drive a staple.

A spring 40 is wrapped about the pivot 35 and has an arm 41 hearingagainst the inner side of the handle 33 and a second arm 42 hearingagainst the elongated portion 23 of the pivoted housing 22 forwardly ofthe pivot- 39 thereof. The action of this spring 40 is such that ittends to move the forward end of the housing 22 downwardly but thismovement is normally prevented by the top wall 45 of the housing restingon the top edge of lever 44 which is normally held in its upper positionby spring arm 41 pressing against the under side of hand lever 33.However, on

initial movement of the handle 33 in the direction of the handle 16 thehousing is released and also the spring is compressed, and the housing22 is rocked on its pivot 39 to throw its head portion 24 downwardly inthe direction of the anvil bar 20 and into engagement with said anvilbar or into engagement with any papers-or the like inserted in the notch19.

r This initial movement takes place without the plunger 28 beingoperated, the initial movement being possible owing to the pin and slotconnection 36,37 and owing to the fact that the opening 32 in the plumer is of such length that the reduced en portion 31 of the operatingmember has a certain amount of play therein. After the lower portion ofthe head engages the anvil bar or the papers to be stapled together,further movement of the housing 22 about its pivot 39 is of courseprevented and a continued push or pressure on the handle 33 in thedirection of the handle 16 will result in the plunger.

28 being operated downwardly through the raceway 27 in a manner to drivethe staple 43 which is the first staple on the strip 26.

After the staple is driven the pressure on handle 33 is released and thespring 40 acts to return the parts to their normal positions. That is,the spring throws the handle 33 upwardly resulting in its inner end 34being thrown downwardly in a manner to rock the operating member 29about its pivot 30 throwing its inner end downwardly and its outer endupwardly. This operating member inwardly of its ,reduced pprtion 31includes a shoulder portion or top edge 44 which as above stated engagestheinner surface of an upper wall 45 of the head 24 whereby to elevatethe pivoted housing to normal posit-ion and retain it there.

From the foregoing description it will be understood that initialmovement of the handle 33 toward the handle 15 results in the housing 22being rocked on its pivot to dispose the head 24 and the lower end ofthe raceway 27 against any papers there may be on the anvil bar, oragainst this bar should there be no papers in the notch 19. Therefore,should a staple become clogged in the raceway it would. be difiicult orimpossible with the mechanism thus far described to eject said staple.Each operation of the handle would simply bring the plunger against .theclogged staple and the clogged staple would be supported or preventedrom leaving the raceway by the anvil bar.

According to the present invention means a position in the path of themovement of the pivoted housing 22 so as to limit its movement andmaintain the housing in a'position with the lower end of. the raceway 27spaced from the anvil bar 20 whereby on operation of the handle 33 astaple clogged in the raceway 3311 be engaged and ejected by the plungerAs shown in Figs. 1 through 6 this means includes a button or projection46 arranged 1n an opening in the side wall 14 of the main. housing '11and at its inner end connected with an arm 47 of a substantially'U-shaped 15 spring 48 arranged in the main housing between the walls'13 and 14 thereof and just above the anvil bar 20. The arm 49 of thespring 48 is disposed against the inner surface of the side wall 13 asclearly shown in Figs. 3 and 6 and this spring 48 therefore servesnormally to maintamthe button 46 in the position in which it is shown inFigs. 1, 2and 3. r f a That is, the spring tends normally to move thebutton 46 in a direction outwardly of i the main housing and this actionof the spring is limited by a flange or washer-like portion 50 at theinner end of .the button and which normally is held flat against theinner surface of the wall 14 of the main housing while the button isprojected through said wall.

As this flange 50 lie's flat against the Wall 14* there will be nointerference with movement of the pivoted housing 22 in the normal useof the machine. However, when the machine becomes clogged the button 46may be pressed inwardly into the position in which it is shown in Fidisposed in the path of movement of the 4 pivoted housing 22.

In this connection it is to be noted that the button is disposedforwardly of the pivot 39 of the housing 22 and it will be apparent thatwhen the button is pressed inwardly downward movement of the headportion 24 of the pivoted housing will be limited as clearly shown inFig. 4. Therefore, the lower end of the raceway 27 will be disposedabove the anvil bar 20 and the parts will be held in this osition.

Furt er operation of thehandle 33 after the housing has engaged theflange 50 of the button will result in the plunger being forceddownwardly through the raceway in a mannet to eject a clogged stapletherefrom as clearly shown in Fig.4. With movement of the housinglimited as suggested it will be apparent that the plunger may beoperated to project it beyond the raceway as shown in that figure. Whenthe pressure is removed from the handle 33 the spr'ng 40 acts to re turnthe parts to normal position. and the spring 48 will force the button 46outwardly to normal position and the machine may then be used in thecustomary manner.

gs.- 4, 5 and 6 with the flange Referring to/the form of the inventionshown in Figs. 8, 9 and 10, the side walls of the main housingill'areprovided with registering inclined slots 51. These slots are arranged inthe lower portions of the walls and inclined upwardly toward the frontof the machine. A stop or limiting member 52 has its end portionsdisposed in the slots does not interfere with the normal movement of thehousing 22 in setting a staple. How

ever, on a staple becoming clogged in the raceway the member 52 may beshiftedfrom the position in which it is shown in Fig. 8 to that in whichit 'is-shown in F ig. 9 wherein it is disposed in the forward or upperend portionsof the slots 51. I

In such position the member 52 is disposed in the normal path ofmovement of the housing 22 and will limit-such movement and pre vent thehousing being rocked to bring the lower end of the raceway against theanvil and the plunger 28 may be operated to project beyond the racewayas shown in F ig. 9 ejecting the clogged staple during this movement.The ears 53 of lthe member 52 r sired.

From the foregoing description taken in connection'with the drawing itwill be apparent that the present invention provides a simple andinexpensive means whereby a clogged staple may easily be ejected. from'the raceway of a machine. It is desirable when driving a staple that thehousing 22 rock to dispose the lower end of the raceway against thepapers to be stapled together s nce the-staple is then guided andsupported while being forced through the papers and 7 being clinched atthe underside thereof. However, in order that a clogged staple may beejected movement of the housing should belimited to maintain the racewayspaced above the anvil when a clogged staple is to be ejected. With themeans of the present invention the desired result is easily accomplshedpivoted housing to permit of operation of the plunger to eject a cloggedstaple from the raceway while the head of the pivoted housing is spacedfrom the anvil.

2. In a stapling machine including a main housing having an anvil and amovable housing having a raceway and a plunger operable in said racewayto drive staples there-- through, said movablehousing shiftable towardand from said anvil during the operation of driving a staple, shiftablelocking means carried by said main housing, and said locking meansshftable into a position to limit movement of said movable housing topermit of the plunger being operated through the raceway to eject aclogged staple therefrom while the movable housing is spaced from theanvil.

3. In a stapling machine includinga main housing having an anvil and amovable housing having a raceway therein and a plunger operable in saidraceway to drive staples therethrough, said movable housing mounted insaid main housing and shiftable toward and from said anvil during theoperation of driving a staple, shiftable lockin means carried by saidmain housing, sai locking means comprisin spring means to return saidstop member to normal position when it is moved therefrom, and said stopadapted to be shifted into the path of the movable housing to limitmovement of the same to permit of the plunger being operated through theraceway to eject a clogged staple therefrom while the movable housing isspaced from the anvil.

4. In a stapling machine including am'ain housing having a pair ofoppositely disposed side walls and an anvil portion between said walls,a movable housing having a raceway therein and a plunger operable insaid raceway to drive staples therethrough, said movable housing mountedin said main housing and shiftable toward and from said anvil during theoperation of driving a staple, a button mounted in an openin in one sidewall of said main housing, a -shaped spring within said main housing andhavmg one of its arms connected with said button, said spring having itsother arm disposed against the side wall opposite the side wall havingthe opening therein, said spring normally functioning to maintain saidbutton a stop member,

projecting through the side wall of the main housing, and said buttonadapted to be manually shifted against the action of said springwherebythe button may be disposed in the-path of movement of the movablehousingto limit movement thereof and permit ofthe plunger being operatedthrough the raceway toejecta clogged staple therefrom while the movablehousing is spaced from theanvil.

5. In a stapling machine including a main housing carrying an anvil, asecond housing having a raceway and a plunger operable in said racewayto drive staples there through, said second housing pivotally' to permit0i the plunger being operated through the raceway to eject a cloggedstaple therefrom while the lower end of the raceway is spacedfrom theanvil.

6. In a stapling. machine, a main housing carrying an anvil, a secondhousing having a raceway and a plunger operable in said raceway to drivestaples therethrough, said second housing pivotally mounted within saidmain housing for rocking movement toward and from said anvil during theoperation of driving a staple whereby to dispose the lower end of saidraceway against the material :to be stapled while a staple is beingdriven through the raceway, means to limit pivotal movement of saidsecond housing to ermitof the-plunger being operated throng the racewayto e ect a clogged staple therefrom while the lower end of the racewayis spaced from the anvil, said means comprising" a slot in a wall of themain housing, and a stop member shiftable in said slot between operativeand inoperative positions. I

.7. In a stapling machine, a main housing carrying an anvil, a secondhousing havin a raceway anda plunger operable in sai raceway to drivestaples therethrough, said second housing pivotally mounted within saidmain housing for rocking movement toward and from said anvil during theoperation of drivingastaple whereby to dispose the lower end of saidraceway against the materialto bestapled while a staple is being driventhrough the raceway, means to limit pivotal .movement ofsaid secondhousing to includingv an inclined slot in a wall of the permit/oithe-plunger being operated throng theraceway to e ect a clogged stament,a stop member extending main housin a shiftable stop member ided by saids 0t, and said stop member s iftable from an inoperative position at thelower end of said slot to a position at the upper end of said slot inthe path of movement of the second housing.

8. In a stapling machine, a main housing including a pair of op ositelyarranged side walls, an anvil carrie by said housing between the lowerportions of said side walls, a second housing having a raceway and aplunger operable in said raceway to drive staples therethrough, saidsecond housingpivotally mounted within said main housing in spacedrelation to said anvil and rockable toward and from said anvil durin theoper ation of driving a staple where y to dispose the lower end of saidraceway against the material to be stapled while a staple is beingdriven through the raceway, means to limit pivotal movement of saidsecond housing to permit of the plunger being 0 rated therefrom whilethe lower end of t e racewa is spaced from the anvil, said means incluing inclined slots formed in said side walls abovethe anvil, said slotsarrangzd in aligntween said walls and having ortions in said slotswhereby movement of t e stop member is guided by said slots, said stopmember movab e' in said slots into and out of the ath of movement of thesecond housing, an said stop member including means frictionally eng gthe outer surfaces of said side walls 13%: d the stop member inadjustedposition. 1

9. In a plier type stapling machine, a housing having a handle rigitherewith, a

handle pivotedto said housing, a ho pivotally mounted in the firsthousing, a hea on said pivoted housing and having a race- ;way therein,an anvil on the first hpusin housing on itspivot to. move its he vdirection of the anvil, said handle on further ed to return the paidplunger to {while the raceway 18 spa 10.;In a stapling machine, ananvil, a

8 below said raceway, a plunger slidable in-the raceway toward and fromthe anvil to drive staples through the raceway,- a spring engaging thepivoted handle and the pivoted housing, a connection between the pivotedhandle and the lun or said sprinadapted on the pivoted an le being mov Vthe action of the spring to rock the votid in e movement adapted throughits connection with the plunger tooperate the same in a direction todrive a staple, said adaptarts to normal position on the pivoted han ebeing released, and means earned by said first housing and shiftable' toand from a position to hmit said' pivotal movement of the ivoted housingto rmit operated throng said iaceway to eject a clogged staple therefromfrom the anvil.

housing having a raceway, a plunger operable in said raceway toward andfrom the anvil to drive staples through the raceway, means to operatethe plun or to drive a staple, means connecting the ousing and the anvilto permit relative movement of the housing and the anvil toward and fromeach other, and a shiftable stop, said stop being shiftable to aposition to limit said first movement to permit operation of theplungerto e'ect a clogged staple from the raceway while t e housing is spacedfrom the anvil.

In testimony whereof I aflix m through the raceway to ei set a 010 gostaple V us-

